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NYCO's '06 Boosted Blue Betty

Discussion in '2nd Gen. Builds (2005-2015)' started by NYCO, May 18, 2011.

  1. Mar 24, 2014 at 7:21 AM
    #3341
    JLink

    JLink Well-Known Member

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    Lifted, Locked, Armored. Ready To Wheel.
    interesting tail pipe you have there.. :spy:
     
  2. Mar 24, 2014 at 7:26 AM
    #3342
    NYCO

    NYCO [OP] go explore...

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    ah you likey mi tailpipe eh?

    :cool:



    it was tucked up hidden behind the factory bumper...then the Sawtooth and CBI came in and you could see it again..been wanting to chop it off or move it up more..
     
  3. Mar 29, 2014 at 8:02 AM
    #3343
    NYCO

    NYCO [OP] go explore...

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    is it bad that i am looking forward to beating on my truck with a BFH today? :D
     
  4. Mar 29, 2014 at 8:06 AM
    #3344
    RockyMtnTRD

    RockyMtnTRD Wanderlust.

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    Noah
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    Looks like you have this setup pretty dialed in. Which shackles would you recommend for me to lower my rear end a little bit? These defined extended length ones are too long and I am a little too ass high for my liking.
     
  5. Mar 29, 2014 at 8:07 AM
    #3345
    SconnieHailer

    SconnieHailer PutterClutch

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    haha, have fun!
     
  6. Mar 29, 2014 at 8:11 AM
    #3346
    NYCO

    NYCO [OP] go explore...

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    i went from the 1" xj shackles to the stock length defined shackles and i like how that turned out...

    i was lucky to have 2 sets of ATO mounts which allowed me to move my upper mount back...

    the first set was too far back for the dakar leaf packs, so he sent me a new one which moved it forward to compensate for the shorter leafs..

    the Toytec BOSS leafs are longer than the Dakars which required me to move my upper mount back to keep the stock length shackles in there..the XJ shackles helped to fill that gap with the more forward mounted ATO, but i wasn't getting full motion, so it was a waste..

    so if you have ext. length shackles now, with good angles at ride height, you'll need to get a new upper mount, pushing the mounting point toward the rear of the truck so you can run shorter shackles..

    been a while since i've seen your angles...

    does your shackle drop straight down on full droop? are you closer to a 40-45* at ride?
     
  7. Mar 29, 2014 at 8:13 AM
    #3347
    NYCO

    NYCO [OP] go explore...

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    you can also look into XJ stock length shackle options if you wanted to play with some cheaper shackles while you dial things in

    i believe the ext. length defined is equivalent to the 1" lift XJ shackle
     
  8. Mar 29, 2014 at 8:40 AM
    #3348
    RockyMtnTRD

    RockyMtnTRD Wanderlust.

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    I would love to get a set of the stock length defined ones but $$ that I don't have comes into play then...

    If I were to change the mounts that would be a bunch of grinding and re welding I think which wouldn't be necessary.

    I haven't had a chance to play with the setup and look at full droop but here is the ride height with ext length shackles7ybynapu_5c26f1d484b86b3f44aafe6f3b77f2b2d9acc3ed.jpg
    umytazy5_26e59198304557816e07b986a4e49d62897b2524.jpg



    So I would be looking at the no lift XJ shackles for temporary use?
     
  9. Mar 29, 2014 at 8:48 AM
    #3349
    NYCO

    NYCO [OP] go explore...

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    my concern would be the ride height angle if you went to the stock length without moving the upper mount.

    the spring will push the shackle back and ride at a flatter angle...i'm no expert, but from what i've read, you want to aim for the 40-45* ride height and vertical on full droop
     
  10. Mar 29, 2014 at 8:49 AM
    #3350
    NYCO

    NYCO [OP] go explore...

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    i still have my factory shackle if you don't have yours
     
  11. Mar 29, 2014 at 8:53 AM
    #3351
    NYCO

    NYCO [OP] go explore...

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  12. Mar 29, 2014 at 8:55 AM
    #3352
    NYCO

    NYCO [OP] go explore...

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    i have the warrior xj shackles still too if you want to toy around with those as well
     
  13. Mar 29, 2014 at 8:57 AM
    #3353
    RockyMtnTRD

    RockyMtnTRD Wanderlust.

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    Thanks Bob. I think the ext length I have on there now are going to be fine, I just dont like the huge rake is all. I guess it will go away at least a little bit when I get a bedrack and rear bumper though...
    I will check and get back to you, might take you up on this
    :thumbsup:
    Thanks again
    :D
     
  14. Mar 29, 2014 at 8:59 AM
    #3354
    RockyMtnTRD

    RockyMtnTRD Wanderlust.

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    Again I would love to, next time I see you or am able to make it down to your area Ill let you know.
     
  15. Mar 29, 2014 at 8:59 AM
    #3355
    jberry813

    jberry813 Professional Fluffer Moderator

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    It's a combination of things. The shackle length should only be long enough to account for the lateral change in length of the leaf spring between droop and compression (full spring arch to flat spring). That said, the farther forward you move the pivot, the longer the shackle you will need to accommodate full spring travel. In addition, as you move the upper pivot forward, you will actually decrease spring rate. Contrary, the farther back you move your pivot, the shorter the shackle you need and you increase spring rate. The angle of the shackle at ride height is somewhat subjective, but in the 40's is a good starting point.
     
  16. Mar 29, 2014 at 9:22 AM
    #3356
    NYCO

    NYCO [OP] go explore...

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    ^this guy understands the headaches of leaf spring tuning :D

    change one thing, 3 more things need to be changed
     
  17. Mar 29, 2014 at 9:33 AM
    #3357
    NYCO

    NYCO [OP] go explore...

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    which is different than what the link i posted above says..

    [​IMG]

    but i had the same mindset that you stated..the further forward the upper mount goes and flatten that angle, the softer the spring rate...while more near 90 the stiffer the spring rate
     
  18. Mar 29, 2014 at 12:28 PM
    #3358
    jberry813

    jberry813 Professional Fluffer Moderator

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    Goddamnit. I need to stay off TW till I have coffee.
    I knew what I wanted to say but said it back asswards. The image above is correct. Reason for more spring rate as you move the shackle forward is it flattens the spring out the farther forward you go (and also lowers ride height). Leaf springs have a progressive spring rate (well most of them) and get stiffer the more compressed they get...or something :goingcrazy:
     
    Last edited: Mar 29, 2014
  19. Mar 29, 2014 at 12:42 PM
    #3359
    NYCO

    NYCO [OP] go explore...

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    if you flatten the spring out, you get more into the stiffer compression rates in the progression...

    on a scale of 1-10, 10 being further along the compression cycle and stiffer in the progressive spring rates..

    a 90* to the plane stated in the picture above would be in the 5 range...further you flatten the spring, you move it along the compression cycle in the 5-10 ranges
     
  20. Mar 29, 2014 at 2:16 PM
    #3360
    lotsoftoys

    lotsoftoys pavement is boring....

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    bunch of crap
    makes sense, but how many shackle setups do u think actually function "correctly". meaning the angle of the shackle and spring length?

    so with that said^ what number would u assign your leafsprings Bob? since the they are at negative arch at ride height? lol :stirthepot:
     

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